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DE WITT c. CHAPMAN.

Car-Heater Coupling. 4 No. 91,824. Patented June 29, 1869i @2f www N PETERS, Pnammmgmphar. wnningwn. D. C.

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Latem PqtenzNo. 91,824, camz .me 29, 1869.

RAILROAD-CAR HEATER. l

The Schedule referred to in these Letters Patent and making part vof the same.

To all whom, 'it may concern Be it known that I, DE' WITT O. GHIPMAN, of N oblesville, .in the county of Hamilton, and State of Indiana, have invented a new and improved mode of connecting the warm-air ducts employed for warming railway-cars, consisting in funnel-shaped mouths, combined with 'a short connecting-tube, so constructed, arranged, and applied to the ends of the ducts of each car as to form with them a continuous conductingtube throughout a train of cars, where the heatingapparatus is situated in the baggage or forward car; and I do hereby declare that the following is a full, clear, and exact description thereof, that will enable skilled artisans to make and use the same, reference being had to the accompanying drawing, and tothe letters of reference marked thereon, making part 'of this specification.

Figure l is a vertical longitudinal section of a baggage-car and side elevation of a `passenger-car, in which the heating-apparatus is situated in the baggage-car, from whence the warm air is conveyed, by a suitable duct, to the passenger-car, and showing my improved device for connecting the ducts of the two cars applied thereto.

Figure 2 is a longitudinal section of my improved device for connecting the warm-air ducts.

Figure 3 is an illustration of the operation of the device, as v aiected by the lateral movement of the cars.

A represents any suitable heating-apparatus, encased, t0 form a warm-air chamber around it, situated in tlie baggage or other forward car of a train.

' B is'a cold-air induction-pipe, furnished with a funnel-mouth open to the external air, and discharging into the warm-air chamber around the stove.

C are the warm-air ducts connected with and leading from the warm-air chamber, and her'e shown arranged under the bottom of the cars, as being the most convenient place for them.

My device for connecting the warm-air ducts O of the several cars is composed of the funnel-shaped mouths D, attached to a short piece of tube, E, made to slide freely in the ends of ducts-O and the short detached duct F.

In order to make this connecting-device automatically adjustable to the longitudinal motion of the cars,

. I attach two spiral springs Gr to the ducts C and to the funnelfmouths D, as shown, so as to thrust the latter forward somewhat beyond the position in lwhich they would be held when the cars are coupled together'.

The' short tubes E to which the funnel-mouths v are attached, being so arranged as to slide freely in the duct C, the springs G keep the mouths D in contact under any longitudinal movement of the cars. The same object may be effected by a spiral spring, arrangedas shown in G', iig. 2. A The mouths D are made funnel-shaped, so that they will remain inl contact under any ordinary lateral movement of the cars, as illustrated in iig. 3, and. so as to allow the connecting-tube F to adjust itself t0 the same movement, as indicated by the dotted lines in the same ligure.

The bell-mouths also serve as shields to protect the pipe F from exposure to the external air.

The short connecting-pipe F is not attached to p vent its being displaced. This may be done by suspending it by a chain in one of the mouths, as indicated in red lines at H, lig. 2, the pipe being left free to adjust itself to the lateral movement of the cars.V

The pipe, suspended in this manner, will also be in position to enter the funnel-month of another carin making up a train.

Having thus fully described my invention,

What I claim as new, and desire to secure by Letters Patent, `is- The construction lof the funnel-mouths D, with wide flanges at their extremities, in combination with the detachable connecting-pipe F, all arranged to operate substantially as and for the purpose set forth.

Witnesses: DE WITT C. OHIPMAN.

JOSEPH R. GRAY, MARCELLUS A. CHLPMAN. 

